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Security updates have been issued by Arch Linux (crypto++ and thunderbird), Debian (cacti, freeimage, git, and jackson-databind), Fedora (nss), openSUSE (clamav, dnsmasq, munge, opencv, permissions, and shadowsocks-libev), Red Hat (nss, nss-softokn, nss-util, rh-maven35-jackson-databind, and thunderbird), Scientific Linux (nss, nss-softokn, nss-util, nss-softokn, and thunderbird), SUSE (caasp-openstack-heat-templates, crowbar-core, crowbar-openstack, crowbar-ui, etcd, flannel, galera-3, mariadb, mariadb-connector-c, openstack-dashboard-theme-SUSE, openstack-heat-templates, openstack-neutron, openstack-nova, openstack-quickstart, patterns-cloud, python-oslo.messaging, python-oslo.utils, python-pysaml2, libssh, and strongswan), and Ubuntu (git, libpcap, libssh, and thunderbird).

The Electronic Frontier Foundation has posted a detailed study on third-party corporate surveillance on the Internet (and beyond). "Both Google and Apple encourage developers to use ad IDs for behavioral profiling in lieu of other identifiers like IMEI or phone number. Ostensibly, this gives users more control over how they are tracked, since users can reset their identifiers by hand if they choose. However, in practice, even if a user goes to the trouble to reset their ad ID, it’s very easy for trackers to identify them across resets by using other identifiers, like IP address or in-app storage. Android’s developer policy instructs trackers not to engage in such behavior, but the platform has no technical safeguards to stop it. In February 2019, a study found that over 18,000 apps on the Play store were violating Google’s policy."

A new mechanism to help thwart return-oriented programming (ROP) and similar attacks has recently been added to the OpenBSD kernel. It will block system calls that are not made via the C library (libc) system-call wrappers. Instead of being able to string together some "gadgets" that make a system call directly, an attacker would need to be able to call the wrapper, which is normally at a randomized location.

The Kubernetes scheduler is being overhauled with a series of improvements that will introduce a new framework and enhanced capabilities that could help cluster administrators to optimize performance and utilization. Abdullah Gharaibeh, co-chair of the Kubernetes scheduling special interest group (SIG Scheduling), detailed what has been happening with the scheduler in recent releases and what's on the roadmap in a session at KubeCon + CloudNativeCon North America 2019.

The Git project has released Git v2.24.1, v2.23.1, v2.22.2, v2.21.1, v2.20.2, v2.19.3, v2.18.2, v2.17.3, v2.16.6, v2.15.4, and v2.14.6. "These releases fix various security flaws, which allowed an attacker to overwrite arbitrary paths, remotely execute code, and/or overwrite files in the .git/ directory etc." The release notes contained in this announcement have the details.

Google Open Source has announced Google Summer of Code (GSoC) 2020, a program that introduces university students to open-source development. "And the 'special sauce' that has kept this program thriving for 16 years: the mentorship aspect of the program. Participants gain invaluable experience working directly with mentors who are dedicated members of these open source communities; mentors help bring students into their communities while teaching them, guiding them and helping them find their place in the world of open source." Applications for interested organizations open on January 14.

Security updates have been issued by Debian (firefox-esr, jruby, and squid3), Fedora (librabbitmq, libuv, and xpdf), openSUSE (calamares and opera), Oracle (kernel and nss), Red Hat (httpd24-httpd, kernel, kernel-alt, kpatch-patch, nss-softokn, sudo, and thunderbird), SUSE (apache2-mod_perl, java-1_8_0-openjdk, and postgresql), and Ubuntu (eglibc, firefox, and samba).

Daniel Vetter has posted a summary of his LPC talk on kernel graphics drivers. "Unfortunately the business case for 'upstream first' on the kernel side is completely broken. Not for open source, and not for any fundamental reasons, but simply because the kernel moves too slowly, is too big, drivers aren’t well contained enough and therefore customer will not or even can not upgrade. For some hardware upstreaming early enough is possible, but graphics simply moves too fast: By the time the upstreamed driver is actually in shipping distros, it’s already one hardware generation behind. And missing almost a year of tuning and performance improvements. Worse it’s not just new hardware, but also GL and Vulkan versions that won’t work on older kernels due to missing features, fragmenting the ecosystem further."

By the end of the merge window, 12,632 non-merge changesets had been pulled into the mainline repository for the 5.5 release. This is thus a busy development cycle — just like the cycles that preceded it. Just over half of those changesets were pulled after the writing of our first 5.5 merge-window summary. As is often the case later in the merge window, many of those changes were relatively boring fixes. There were still a number of interesting changes, though; read on for a summary of what happened in the second half of this merge window.

Security updates have been issued by CentOS (SDL), Debian (htmldoc, librabbitmq, nss, openjdk-7, openslp-dfsg, and phpmyadmin), Fedora (chromium, community-mysql, kernel, libidn2, oniguruma, proftpd, and rabbitmq-server), Mageia (ansible, clamav, evince, firefox, graphicsmagick, icu, libcryptopp, libtasn1, libtiff, libvncserver, libvpx, lz4, nss, openexr, openjpeg2, openssl, phpmyadmin, python-psutil, python-twisted, QT, sdl2_image, SDL_image, sysstat, thunderbird, and tnef), Oracle (firefox), Red Hat (java-1.8.0-ibm and nss), Scientific Linux (firefox and kernel), SUSE (kernel), and Ubuntu (nss).

Linus has released the 5.5-rc1 kernel prepatch and closed the merge window for this development cycle. "Everything looks fairly regular - it's a tiny bit larger (in commit counts) than the few last merge windows have been, but not bigger enough to really raise any eyebrows. And there's nothing particularly odd in there either that I can think of: just a bit over half of the patch is drivers, with the next big area being arch updates. Which is pretty much the rule for how things have been forever by now. Outside of that, the documentation and tooling (perf and selftests) updates stand out, but that's actually been a common pattern for a while now too, so it's not really surprising either."

Alexandr Nedvedicky (sashan@) wrote to tech@ regarding a recent significant change: Hello, commit from today [1] makes IP stack more paranoid. Up to now OpenBSD implemented so called 'weak host model' [2]. The today's commit alters that for hosts, which don't forward packets (don't act as routers). Your laptops, desktops and servers now check packet destination address with IP address bound to interface, where such packet is received on. If there will be mismatch the packet will be discarded and 'wrongif' counter will be bumped. You can use 'netstat -s|grep wrongif' to display the counter value. It is understood the behavior, which has been settled in IP stack since 80's, got changed. tech@openbsd.org (or bugs@openbsd.org) wants to hear back from you, if this change breaks your existing set up. There is a common believe this change won't hurt majority (> 97%) users, though there is some non-zero risk, hence this announcement is being sent. thanks and regards sashan [1] https://marc.info/?l=openbsd-cvs&m=157580332113635&w=2 [2] https://en.wikipedia.org/wiki/Host_model

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